Datasheet > MC34652R2

MC34652R2

更新时间： 2024-11-07 04:40:51

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		控制器
页数	文件大小	规格书
25页	1063K
描述
2.0 A Negative Voltage Hot Swap Controller with Enhanced Programmability

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MC34652R2 数据手册

Document order number: MC34652

Rev 6.0, 02/2006

Freescale Semiconductor

Technical Data

2.0 A Negative Voltage Hot

Swap Controller with Enhanced

Programmability

34652

2.0 A NEGATIVE VOLTAGE

HOT SWAP CONTROLLER WITH

ENHANCED PROGRAMMABILITY

The 34652 is a highly integrated -48 V hot swap controller with an

internal Power MOSFET. It provides the means to safely install and

remove boards from live -48 V backplanes without having to power

down the entire system. It regulates the inrush current, from the

supply to the load’s filter capacitor, to a user-programmable limit,

allowing the system to safely stabilize. A disable function allows the

user to disable the 34652 manually or through a microprocessor and

safely disconnect the load from the main power line.

The 34652 has active high and active low power good output

signals that can be used to directly enable a power module load.

Programmable under- and overvoltage detection circuitry monitors

the input voltage to check that it is within its operating range.

A programmable start-up delay timer ensures that it is safe to turn on

the Power MOSFET and charge the load capacitor.

A two-level current limit approach to controlling the inrush current

and switching on the load limits the peak power dissipation in the

Power MOSFET. Both current limits are user programmable.

SCALE 2:1

EF SUFFIX (PB-Free)

98ASB42566B

16-TERMINAL SOICN

Features

• Integrated Power MOSFET and Control IC in a Small Outline

Package

• Input Voltage Operation Range from -15 V to -80 V

• Programmable Overcurrent Limit with Auto Retry

• Programmable Charging Current Limit Independent of Load

Capacitor

ORDERING INFORMATION

Temperature

Device

Package

Range (T )

• Programmable Start-Up and Retry Delay Timer

• Programmable Overvoltage and Undervoltage Detection

• Active High and Low Power Good Output Signals

• Thermal Shutdown

MC34652EF/R2

-40°C to 85°C

16 SOICN

• Pb-Free Packaging Designated by Suffix Code EF

34652

DISABLE

Application

Dependent

GND

System

Power

Supply

VPWR

VOUT

Load

(Backplane)

-48 V

VIN

ICHG

Optional

External

Components

TIMER

Optional

External

Components

ILIM

Figure 1. 34652 Simplified Application Diagram

* This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

12 3 4 5 6 7...25

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与MC34652R2相关器件

型号	品牌	获取价格	描述	数据表
MC34653	NXP	获取价格	1.0 A Negative Voltage Hot Swap Controller
MC34653EF	NXP	获取价格	1.0 A Negative Voltage Hot Swap Controller
MC34653EF/R2	FREESCALE	获取价格	1.0 A Negative Voltage Hot Swap Controller
MC34653EFR2	NXP	获取价格	1.0 A Negative Voltage Hot Swap Controller
MC34670	FREESCALE	获取价格	IEEE 802.3af PD With Current Mode Switching Regulator
MC34671	FREESCALE	获取价格	Power Management IC
MC34671AEP	NXP	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 2 X 3 MM, 0.65 MM HEIGHT, 0.50 MM PITCH, ROHS C
MC34671AEP/R2	FREESCALE	获取价格	High Input Voltage 600mA Charger for Single-cell Li-Ion Batteries
MC34671AEPR2	NXP	获取价格	Battery Charger, single cell, 0.6Amp, QFN 8, Reel
MC34673	FREESCALE	获取价格	High Input Voltage 1.2A Charger for Single-cell Li-Ion Batteries

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